Bolus-chase contrast enhanced MR angiography (ceMRA) of
the distal leg does not provide dynamic information about arterial blood flow
and suffers from limitations such as missed boluses and venous contamination.
Here, application of dynamic contrast-enhanced MR angiography using time
resolved imaging with stochastic trajectories (TWIST) for arteriography of the
distal leg is described and a quantitative analysis of contrast dynamics of
lower legs is performed. A quantitative comparison of apparent arterial lumen
diameters in dynamic images obtained with the TWIST method and images acquired
with a ceMRA method is also performed.